Home / 31,808.08-47,681.04-15,163.64

Finding the Fourth Proportional to 31,808.08, 47,681.04 and 15,163.64

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Solution

The fourth proportional to 31,808.08, 47,681.04 and 15,163.64 is: 22,730.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,808.08 : 47,681.04 = 15,163.64 : x
  2. Step 2: Convert to fraction form
    31,808.08/47,681.04 = 15,163.64/x
  3. Step 3: Cross multiply
    31,808.08x = 47,681.04 × 15,163.64
  4. Step 4: Simplify right side
    31,808.08x = 723,018,125.39
  5. Step 5: Solve for x
    x = 723,018,125.39/31,808.08
  6. Step 6: Final answer
    x = 22,730.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.